distance.c File Reference

Calculate distance between to geolocations. More...

#include "jurassic.h"

Go to the source code of this file.

Functions
int	main (int argc, char *argv[])

Detailed Description

Calculate distance between to geolocations.

Definition in file distance.c.

Function Documentation

main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 28 of file distance.c.

                {
 
  double x0[3], x1[3];
 
  /* Check arguments... */
  if (argc < 5)
    ERRMSG("Give parameters: <lon0> <lat0> <lon1> <lat1>");
 
  /* Read geolocations... */
  const double lon0 = atof(argv[1]);
  const double lat0 = atof(argv[2]);
  const double lon1 = atof(argv[3]);
  const double lat1 = atof(argv[4]);
 
  /* Write distance to stdout... */
  geo2cart(0, lon0, lat0, x0);
  geo2cart(0, lon1, lat1, x1);
  printf("%g\n", DIST(x0, x1));
 
  return EXIT_SUCCESS;
}